add_subdirectory_if_module_enabled( Common )
add_subdirectory_if_module_enabled( QuadEdgeMesh )
add_subdirectory_if_module_enabled( Mesh )
add_subdirectory_if_module_enabled( TestKernel )
add_subdirectory_if_module_enabled( Transform )
add_subdirectory_if_module_enabled(ImageFunction)
add_subdirectory_if_module_enabled(ImageAdaptors)
add_subdirectory_if_module_enabled(SpatialObjects)
